Can't find source of temp file buildup

I've been working on a laptop and I can't seem to find out why there are temp files constantly and rapidly building up in my temp folders. I ran MalwareBytes which discovered and removed viruses and I also ran AVG Free Antivirus and nothing new came up. I also ran several disk and registry cleanups and defrags. The files are named iexxxx.tmp, inx.tmp, perflib_perfdata_xxx.dat where x can be any number or letter. Here is my log file from HijackThis. Can anyone see anything that might be causing this problem or does anyone have further suggestions?

I found the problem. It was due to a program called realVNC. The program had a trojan attached to userinit.exe. First I ended all running processes related to the program. Then I deleted all registry keys for it. Lastly, I ran SUPERAntiSpyware and MalwareBytes in safemode. It found the virus, deleted it, and the problem was fixed.